based on data maintenance

beacon data generation

Coordinate Data File

Data File

data file of figure

Data maintenance

digital data file

File Data

geological data file

maintenance data depot

nuclear data file

raw data file

file maintenance

convesion of curved-surface data into borizontal-plane data

data processing for piecing together various 3 D data sets

ratio of test data to design data

seismic data transmission data

test data and the highest data

Generation by Generation

“point” data